There is an upcoming" P&A wave" of wells that need to be permanently plugged and
abandoned, especially in mature, offshore areas such as the North Sea and Gulf of Mexico …

The current practice on the Norwegian Continental Shelf (NCS) when designing solutions
for permanent plug and abandonment (P&A) complies with NORSOK Standard D-010. This …

Wells with compromised integrity can cause groundwater/soil contamination and increased
carbon emissions. Given that there are more than 3.7 million abandoned wells in existence …

The final stage in the life of a hydrocarbon well is decommissioning, which aims to ensure
that the original integrity of the cap rock is restored and all penetrated sub-surface …

Abstract Plug & abandonment (P&A) regulations on the Norwegian continental shelf are
largely prescriptive, since the same requirements are applied irrespective of well conditions …

The cement between the casings and formation is a critical barrier element for ensuring
zonal isolation. Shrinkage during curing and mechanical or thermal loads applied during …

With the increasing number of aging fields and wells worldwide, a large number of wells will
have to permanently plugged and abandoned in the coming decades. Today's technical …

Recently, there has been a drive towards a risk-based approach to plug & abandonment
(P&A) design. To apply a risk-based approach for decision-making, ie to decide if a P&A …

As decommissioning operations continue to expand, the challenges associated with
evaluating the integrity of the cement layer and its bond to casing and formation become …

Maintaining integrity is a major concern throughout the lifecycle of a well, especially during
the decommissioning stage. Regulatory requirements mandate that barriers be established …